What is this all about? You have batteries these days with capacities of 3700 and 4200+ and people still want more. Why most people even bother to pay for premium cells is beyond me. "Dumping" appears to be a thing of the past, and I think the attitide today towards cells is a legacy of the attitude that developed when cells meant the balance between speed and finishing the race was on a knife edge.
I would rather use (and marshall cars using) cells that were not liable to endanger my life. The sport needs rules and rules should be based on saftey and creating a standard that allows manufacturers to complete on a level playing field.
Unless you are competing at a national level time, effort and money is better spent on tyres, car set ups, and actually thinking about understanding how a car handles on any given track.
Having said all that, if Lipo is proven to be designed towards R/C racing and meets the same physical and safetly constraints imposed upon other cells then who has the right to say it is not allowed? If I can design a 540 sized nuclear powered rocket to the rear of my car then I will damn well use it - corners - who cares